Finding the Fourth Proportional to 354,658.86, 489,447.99 and 203,765.58
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Solution
The fourth proportional to 354,658.86, 489,447.99 and 203,765.58 is: 281,207.28
Step by Step Solution
- Step 1: Write the proportion equation
354,658.86 : 489,447.99 = 203,765.58 : x - Step 2: Convert to fraction form
354,658.86/489,447.99 = 203,765.58/x - Step 3: Cross multiply
354,658.86x = 489,447.99 × 203,765.58 - Step 4: Simplify right side
354,658.86x = 99,732,653,562.18 - Step 5: Solve for x
x = 99,732,653,562.18/354,658.86 - Step 6: Final answer
x = 281,207.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.